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LIST OF PLATES
| PLATE | PAGE | ||
| XXIV. | Virginia Chain Fern, | Woodwardia Virginica, | 157 |
| XXV. | New York Fern, | Aspidium Noveboracense, | 161 |
| XXVI. | Marsh Fern, | Aspidium Thelypteris, | 163 |
| XXVII. | Spinulose Wood Fern, | Aspidium spinulosum, var. intermedium, | 165 |
| XXVIII. | Boott's Shield Fern, | Aspidium Boottii, | 167 |
| XXIX. | Crested Shield Fern, | Aspidium cristatum, | 169 |
| XXX. | Clinton's Wood Fern, | Aspidium cristatum, var. Clintonianum, | 171 |
| XXXI. | Goldie's Fern, | Aspidium Goldianum, | 173 |
| XXXII. | Evergreen Wood Fern, | Aspidium marginale, | 175 |
| XXXIII. | Fragrant Shield Fern, | Aspidium fragrans, | 179 |
| XXXIV. | Braun's Holly Fern, | Aspidium aculeatum, var. Braunii, | 183 |
| XXXV. | Broad Beech Fern, | Phegopteris hexagonoptera, | 189 |
| XXXVI. | Oak Fern, | Phegopteris Dryopteris, | 191 |
| XXXVII. | Bulblet Bladder Fern, | Cystopteris bulbifera, | 195 |
| XXXVIII. | Fragile Bladder Fern, | Cystopteris fragilis, | 197 |
| XXXIX. | Rusty Woodsia, | Woodsia Ilvensis, | 199 |
| XL. | Blunt-lobed Woodsia, | Woodsia obtusa, | 201 |
| XLI. | Northern Woodsia, | Woodsia hyperborea, | 205 |
| XLII. | Smooth Woodsia, | Woodsia glabella, | 207 |
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